Which of the following can be found on one DNA molecule?A.No more than 2 base pairsB.A single amino acidC.At least 10 chromosomesD.Hundreds of genes

The correct answer is D. Hundreds of genes.

Here's why:

A. No more than 2 base pairs - This is incorrect. A DNA molecule consists of millions of base pairs.

B. A single amino acid - This is incorrect. Amino acids are the building blocks of proteins, not DNA. DNA contains the instructions for making proteins, but does not contain amino acids itself.

C. At least 10 chromosomes - This is incorrect. A chromosome is a single piece of DNA. So, one DNA molecule corresponds to one chromosome, not 10.

D. Hundreds of genes - This is correct. A gene is a segment of DNA that contains the instructions for building one or more molecules that help the body work. Depending on its size, a DNA molecule can contain anywhere from a few genes to several thousand.